2  * NetLabel Domain Hash Table
4  * This file manages the domain hash table that NetLabel uses to determine
5  * which network labeling protocol to use for a given domain.  The NetLabel
53 /* Domain hash table */
63  * Domain Hash Table Helper Functions
67  * netlbl_domhsh_free_entry - Frees a domain hash table entry
101 	kfree(ptr->domain);  in netlbl_domhsh_free_entry()
106  * netlbl_domhsh_hash - Hashing function for the domain hash table
107  * @domain: the domain name to hash
110  * This is the hashing function for the domain hash table, it returns the
111  * correct bucket number for the domain.  The caller is responsible for
131  * netlbl_domhsh_search - Search for a domain entry
132  * @domain: the domain
135  * Searches the domain hash table and returns a pointer to the hash table
141 static struct netlbl_dom_map *netlbl_domhsh_search(const char *domain)  in netlbl_domhsh_search()  argument
147 	if (domain != NULL) {  in netlbl_domhsh_search()
148 		bkt = netlbl_domhsh_hash(domain);  in netlbl_domhsh_search()
151 			if (iter->valid && strcmp(iter->domain, domain) == 0)  in netlbl_domhsh_search()
159  * netlbl_domhsh_search_def - Search for a domain entry
160  * @domain: the domain
164  * Searches the domain hash table and returns a pointer to the hash table
171 static struct netlbl_dom_map *netlbl_domhsh_search_def(const char *domain)  in netlbl_domhsh_search_def()  argument
175 	entry = netlbl_domhsh_search(domain);  in netlbl_domhsh_search_def()
212 				 entry->domain ? entry->domain : "(default)");  in netlbl_domhsh_audit_add()
249  * Domain Hash Table Functions
253  * netlbl_domhsh_init - Init for the domain hash
257  * Initializes the domain hash table, should be called only by
292  * netlbl_domhsh_add - Adds a entry to the domain hash table
297  * Adds a new entry to the domain hash table and handles any updates to the
320 	if (entry->domain != NULL)  in netlbl_domhsh_add()
321 		entry_old = netlbl_domhsh_search(entry->domain);  in netlbl_domhsh_add()
323 		entry_old = netlbl_domhsh_search_def(entry->domain);  in netlbl_domhsh_add()
327 		if (entry->domain != NULL) {  in netlbl_domhsh_add()
328 			u32 bkt = netlbl_domhsh_hash(entry->domain);  in netlbl_domhsh_add()
359 		 * the selectors do not exist in the existing domain map */  in netlbl_domhsh_add()
411  * netlbl_domhsh_add_default - Adds the default entry to the domain hash table
416  * Adds a new default entry to the domain hash table and handles any updates
428  * netlbl_domhsh_remove_entry - Removes a given entry from the domain table
433  * Removes an entry from the domain hash table and handles any updates to the
463 				 entry->domain ? entry->domain : "(default)",  in netlbl_domhsh_remove_entry()
494  * @domain: the domain
500  * Removes an individual address selector from a domain mapping and potentially
505 int netlbl_domhsh_remove_af4(const char *domain,  in netlbl_domhsh_remove_af4()  argument
520 	if (domain)  in netlbl_domhsh_remove_af4()
521 		entry_map = netlbl_domhsh_search(domain);  in netlbl_domhsh_remove_af4()
523 		entry_map = netlbl_domhsh_search_def(domain);  in netlbl_domhsh_remove_af4()
540 	/* the domain mapping is empty so remove it from the mapping table */  in netlbl_domhsh_remove_af4()
560  * netlbl_domhsh_remove - Removes an entry from the domain hash table
561  * @domain: the domain to remove
565  * Removes an entry from the domain hash table and handles any updates to the
570 int netlbl_domhsh_remove(const char *domain, struct netlbl_audit *audit_info)  in netlbl_domhsh_remove()  argument
576 	if (domain)  in netlbl_domhsh_remove()
577 		entry = netlbl_domhsh_search(domain);  in netlbl_domhsh_remove()
579 		entry = netlbl_domhsh_search_def(domain);  in netlbl_domhsh_remove()
591  * Removes/resets the default entry for the domain hash table and handles any
602  * netlbl_domhsh_getentry - Get an entry from the domain hash table
603  * @domain: the domain name to search for
606  * Look through the domain hash table searching for an entry to match @domain,
611 struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain)  in netlbl_domhsh_getentry()  argument
613 	return netlbl_domhsh_search_def(domain);  in netlbl_domhsh_getentry()
617  * netlbl_domhsh_getentry_af4 - Get an entry from the domain hash table
618  * @domain: the domain name to search for
622  * Look through the domain hash table searching for an entry to match @domain
627 struct netlbl_domaddr4_map *netlbl_domhsh_getentry_af4(const char *domain,  in netlbl_domhsh_getentry_af4()  argument
633 	dom_iter = netlbl_domhsh_search_def(domain);  in netlbl_domhsh_getentry_af4()
649  * netlbl_domhsh_getentry_af6 - Get an entry from the domain hash table
650  * @domain: the domain name to search for
654  * Look through the domain hash table searching for an entry to match @domain
659 struct netlbl_domaddr6_map *netlbl_domhsh_getentry_af6(const char *domain,  in netlbl_domhsh_getentry_af6()  argument
665 	dom_iter = netlbl_domhsh_search_def(domain);  in netlbl_domhsh_getentry_af6()
681  * netlbl_domhsh_walk - Iterate through the domain mapping hash table
688  * Interate over the domain mapping hash table, skipping the first @skip_bkt